Structure and Properties of Ceramics Based on ZrO2, Synthesis by Solvotermal Method

Nanosized powders ZrO2-NiO with a particle size of 10-20 nm were obtained by the method of solvotermal synthesis. It is shown that the processes of formation of nanoparticles of c(t)-ZrO2 and m-ZrO2 at the given parameters of solvotermal synthesis take place at different speeds. Ceramic material based on nanosized powders of ZrO2 was obtained by the cold isostatic pressing and further sintering. The microstructure, phase composition and strength properties of ceramics were determined by the scanning electron microscopy (SEM), transmission electron microscopy (TEM) with diffraction, X-ray phase analysis. Mechanical properties of ceramic were evaluated by the value of compressive strength. Compressive strength of the experimental samples was at 700 MPa.